books.google.co.uk - Within cognitive science, two approaches currently dominate the problem of modeling representations. The symbolic approach views cognition as computation involving symbolic manipulation. Connectionism, a special case of associationism, models associations using artificial neuron networks. Peter Gardenfors...http://books.google.co.uk/books/about/Conceptual_Spaces.html?id=FSLFjw1EcBwC&q=function&utm_source=gb-gplus-shareConceptual Spaces